7.8
High
CVE-2026-42171 NSIS (Nullsoft Scriptable Install System) 3.06.1 before 3.12 sometimes uses the Low IL temp directory when executing…
Description
NSIS (Nullsoft Scriptable Install System) 3.06.1 before 3.12 sometimes uses the Low IL temp directory when executing as SYSTEM, allowing local attackers to gain privileges (if they can cause my_GetTempFileName to return 0, as shown in the references).
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Nullsoft Scriptable Install System 3.06 | 3.06.1 → < 3.12 | 3.12 |
References
- nsis.sourceforge.io nsis.sourceforge.io
- github.com github.com
- github.com github.com
- learn.microsoft.com learn.microsoft.com
Timeline
- Published
- Last modified